X-ray ‘Tsunami’ Wave Found in Perseus Galaxy Cluster (Video)

Scientists have found a vast tsunami wave of hot gas in the nearby Perseus galaxy cluster.

The wave is about twice the size of our own Milky Way galaxy, spanning some 200,000 light-years.

The researchers say the giant wave formed billions of years ago, after a small galaxy cluster grazed Perseus and caused its vast supply of gas to slosh around an enormous volume of space.

These waves are giant versions of Kelvin-Helmholtz intabilities, which show up wherever there’s a velocity difference across the interface of two fluids, such as in cloud formations on Earth, for example.

giant tsunami wave perseus galaxy cluster, Scientists find giant wave rolling through the Perseus galaxy cluster, Scientists find giant wave rolling through the Perseus galaxy cluster
Scientists have found a giant tsunami wave escaping from the Perseus Galaxy Cluster. RAS Paper via Phys.org

The Perseus galaxy cluster is some 11 million light-years across and located about 240 million light-years away. Most of its observable matter takes the form of a pervasive gas averaging tens of millions of degrees, so hot it only glows in X-rays.

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